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问题 单项选择题

某日对某市空气质量进行监测，测得空气污染指数API为150，易感人群症状轻度加剧，健康人群出现刺激症状，空气质量状况为轻度污染，那么此时空气质量的表征颜色为

A．蓝色
B．紫红色
C．墨绿色
D．浅黄色
E．橘红色

答案

参考答案：D

改错题

短文中共有10处错误，错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号(∧)，并在此符号下面写出该加的词。

删除：把多余的词用斜线( \ )划掉。

修改：在错的词下划一横线，并在该词的下面写出修改后的词。

注意：

1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者(从第11处起)不计分。

Tom finished his middle school half a year before and then he worked for a postman in his small town. As he was afraid of dogs, he often had a lot of troubles. One afternoon, he tried to take a post card to a bigger house by bike. When he reached the house and got off from his bike at the gate, at once a large dog came run at him with much noise. Tom quickly threw the card through the gate. With his surprise, the dog didn’t make any noise. It ran fast to a card, picked it up with its mouth, carried it towards the house. Tom thought for a while and said to him, “The dog is a better postman than I am.”
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多项选择题

循环经济本质上属于生态经济，强调资源利用的（）

A.物有所值

B.低消耗

C.低污染

D.高利用率

E.高循环率
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